The Stokes number, St, used in particle-dynamics studies, is a dimensionlesscombination of five variables: acceleration of gravity g, viscosity μ, density p, particle velocity U,and particle diameter D. (a) If St is proportional to μ and inversely proportional to g, find its form.(b) Show that St is actually the quotient of two more traditional dimensionless groups.

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Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

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ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.8P

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The Stokes number, St, used in particle dynamics studies,is a dimensionless combination of five variables: accelerationof gravity g , viscosity μ , density ρ , particle velocity U ,and particle diameter D . ( a ) If St is proportional to μand inversely proportional to g , find its form . ( b ) Showthat St is actually the quotient of two more traditionaldimensionless groups.
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